Usability, acceptability, and feasibility of a High-Density Microarray Patch (HD-MAP) applicator as a delivery method for vaccination in clinical settings
Cristyn Davies, Melody Taba, Lucy Deng, Ceylan Karatas, Shopna Bag, Charles W. Ross, Angus H. Forster, Robert Booy, S. Rachel Skinner
Abstract
BACKGROUND: for vaccine delivery. METHODS: This feasibility study recruited PIs and HCWs to administer/receive simulated HD-MAP administration, including via self-administration. We assessed usability against essential and desirable criteria. Participants completed a survey, rating their agreement to statements about HD-MAP administration. A subset also participated in an interview or focus group. Survey data were analyzed using descriptive statistics, and interviews were transcribed and subject to thematic analysis. RESULTS: We recruited 61 participants: 23 PIs and 38 HCWs. Findings indicated high usability and acceptability of HD-MAP use across both groups by a healthcare professional or trained user and for self-administration with safety measures in place. Most administrations met essential criteria, but PIs, on average, applied the HD-MAP for slightly less time than the required 10-seconds, which the HCWs achieved. PIs perceived safety concerns about home administration but found layperson self-administration acceptable in an emergency, pandemic, and rural or remote settings. CONCLUSIONS: Participants found HD-MAP administration usable and acceptable. Usability and acceptability are likely to be improved through end-user education and training.